A sexual assault case is stuck due to identical DNA of twins.
French authorities investigating several sexual attacks have arrested identical twin brothers in connection with the crimes committed in Marseille.
DNA tests are not able to distinguish between the twin brothers, but police are certain that one of them is responsible based on the evidence.
They have been arrested after six similar sexual assaults on women that happened between September of last year and January of 2013.
The authorities arrested the brothers on the basic of a CCTV on a bus. In addition a victim has identified one of the brothers as her assailant, but reportedly she could not tell the difference between the twins.
Running DNA tests that could tell the difference between the brothers would cost around 1.3 million dollars.
Another case where identical twin DNA has confused and disrupted police investigations happened in 2010 when nearly 15 thousand dollars worth of watches were stolen.
Police found blood DNA at the scene that matched to twin brothers James and John Parr.
Both twin brothers were arrested, but they both denied the crime and police were forced to release them based on the fact that they could not prove which of the twins was guilty.